The Washer,flat, cataloged under National Stock Number 5310-00-043-0521, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-043-0521 |
| Primary Part Number | 6372-11 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | CANCELLED |
| Overall Diameter | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM B152 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thickness | 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Center Hole Shape Style | ROUND |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material | COPPER OVERALL |
| Hole Diameter | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-00-043-0521 is a Washer,flat, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-043-0521 has 3 cross-referenced part numbers: 6372-11 (Lockheed Martin Corporation Div Rotary and Mission Systems), 6372-11 (Mundean Mfg Co), 6372 (Lockheed Martin Corporation).
There are 12 known substitutes for 5310-00-043-0521: 8345-00-233-2903, 8345-00-245-2758, 5310-00-262-4373 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6372-11: Overall Diameter: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Material Document and Classification: ASTM B152 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thickness: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND. 10 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-043-0521 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.